/*Navigator样式*/
nav.navbar-inverse {
    margin: 0px auto 25px auto;
    width: 100%;
    padding: 10px;
    background-color: #ecf0f3;
    box-shadow: 10px 10px 10px #d1d9e6, -10px -10px 10px #f9f9f9;
    border-radius: 12px;
    overflow: hidden;
    border: none;
}

.navbar-inverse .navbar-brand {
    color: gray;
}

div.nav-box {
    position: relative;
    display: block;
    left: 10%;
}